Grandmaster Repertoire is a series of high quality chess books based on the main lines, written by strong grandmasters. The aim is to provide the reader with a complete repertoire at a level good enough for elite tournaments, and certainly also for the club championship.

The Tarrasch Defence arises after 1.d4 d5 2.c4 e6 3.Nc3 c5 and leads to dynamic play. Based on the variation 9.Bg5 c4, Ntirlis and Aagaard radically change the theoretical landscape for this classic opening, with analysis checked many times over and an ocean of new ideas.

Nikolaos Ntirlis is a computer specialist and successful trainer from Greece.

GM Jacob Aagaard has won the Guardian, ECF and ChessCafe book of the year awards, as well as many international tournaments. This is his first opening book for 8 years.